CVE-2017-5451

Public Exploit

Description

A mechanism to spoof the addressbar through the user interaction on the addressbar and the "onblur" event. The event could be used by script to affect text display to make the loaded site appear to be different from the one actually loaded within the addressbar. This vulnerability affects Thunderbird < 52.1, Firefox ESR < 52.1, and Firefox < 53.

Category

4.3
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.58%
Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory mozilla.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org
Affected: Mozilla Thunderbird
Affected: Mozilla Firefox ESR
Affected: Mozilla Firefox
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2017-5451?
CVE-2017-5451 has been scored as a medium severity vulnerability.
How to fix CVE-2017-5451?
To fix CVE-2017-5451, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-5451 being actively exploited in the wild?
It is possible that CVE-2017-5451 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2017-5451?
CVE-2017-5451 affects Mozilla Thunderbird, Mozilla Firefox ESR, Mozilla Firefox.
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